Jonah collects rainwater in a large barrel that weighs 30 pounds. When there are 10 gallons of water in the barrel, the total we
ight of the barrel and the water is 113.4 pounds. When there are 20 gallons of water, the total weight is 196.8 pounds. Which equation and graph match this situation? A. y = 8.34x + 30 B. y = 30x + 8.34 C. y = 30x + 8.34 D. y = 8.34x + 30
The first thing we are going to do for this case is define variables. We have then: x: number of gallons of water y: total weight We then have an equation of the form: Where, Substituting values: We choose an ordered pair: Substituting values: Rewriting: Answer: y = 8.34x + 30
The x4 would have to be in the parentheses while the -3 would have to be on the outside because you are subracting 3 from 48 4 cases of 12 bottled waters is 48 total amount of bottled waters since Veronica drank 3 she has 45 bottled waters left
